Safety extractor-cover.



W. BARTHOLOMEW. SAFETY 2x11110103 00171111.

APPLICATION FILED JAN. 6, 1911.

1,002,894. Patented Sept. 12,1911.

WITNESSES: E I INVENTOR 0%%F I 5 u I I B Y fi J Attorney COLUMN 1PLANOGRAPH CO.,WASHINOTON D c W. BARTHOLOMBW.

SAFETY EXTRAGTOR COVER.

APPLICATION FILED JAILG, 1911.

Patented Sept. 12,1911.

' 2 SHEETS-8HEET 2.

I I I III .IIIII II III .III I III III I II I I \II' II II IIIYIIIIII-I. IIII' IIIIIIII IIIII IIIIIIIII. "III-II INVENTOR A omey UNTTEDSTATES PATEN T OFFICE.

WILLIAM BARTHOLOMEVI, QF CHICAGD, ILLINOIS, ASSIGNOB TO TROY LAUNDRYMACHINERY COMPANY, LIMITED, OF CHICAGO, ILLINOIS, A CORPORATION OF NEWYORK.

SAFETY EXTRACTOR-COVER.

Specification of Letters Patent.

Patented Sept. 12, 1911.

To all whom it may concern:

Be it known that I, WILLIAM BARTHoLo- I\IE\V, a citizen of the UnitedStates, residing at Chicago, county of Cook, State of Illinois, haveinvented certain new and use ful Improvements in SafetyExtractor-Covcrs, of which the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to a safety extractor cover and particularly to aconstruction which prevents the opening of the cover members when thedriving connection is in operative position.

The invention has for an object to provide a novel and improvedconstruction in which the opposite members of the cover engage eachother at their free ends when closed and are retained in closed positionso long as the driving connections are shifted to operate the extractoror other device to which the invention may be applied.

Uther and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by theappended claims.

In the drawings-Figure 1 is a perspective showing the application of thecover to a centrifugal extractor the cover being of such configurationas to conform to the outline of the case; Fig. 2 is an elevation withparts in section showing the cover members; Fig. 3 is a plan of theseparts showing a modified outline of cover; Fig. 1 is a detail plan ofthe pivoting bracket for the cover members; Fig. 5 is a front elevationthereof; Fig. 6 is a detail section on line 66 of Fig. 3 showing themeans for limiting the opening of the cover members; and Fig. 7 is adetail of the cover pivot bearing.

Like numerals of reference refer to like parts in the several figures ofthe drawings.

This invention is adapted for application to any character of powerdriven machine having cover members, but for the purpose ofillustration, is shown in connection with a centrifugal extractor, whichembodies the casing 10 provided with the standards 11 at opposite sides,which form a bearing for the driving shaft 12. This shaft is driven bymeans of a belt 13 which embraces a pulley thereon and extends over anidler 14 and thence downward to a pulley 15 mount-- ed upon a shaft 16.This shaft is also pro vided with fast and loose pulleys 17 and 18 andwith a cooperating belt shifter 19 mounted upon a sliding rod 20 whichis provided at the front of the machine with an operating handle 21.

The casing 10 is provided with an openlng at its upper portion throughwhich access may be obtained to the basket or other member of theextractor mounted therein and this opening is adapted to be closed bymeans of cover members 22 and 23, each of which is mounted upon a hingebracket 24 which is secured to the standard or other fixed part by meansof the apertures 25 and provided with an aperture 26 adapted to receivea pin 27 carried by the bearing 35 in which the pivot 28 is mounted andupon which the cover members are hinged by any desired means, forinstance a pin 36 as shown in Fig. 2. Each of these cover members isprovided with a sleeve 29 mounted upon the pivot 28 and the movementthereof in each direction is limited by a stop 30 carried by the pivot28 and trav-' ersing a slot 31 provided in the sleeve 29 of the covermembers, as shown in Fig. 6.

The cover members 22 and 23 are provided with an engaging projectionsuch as the pins 32 carried by the member 23 and adapted to seat withina recess 33 carried by the member 22 as shown in Fig. 2. The covermember 23 is also provided with a lug or projection 34 upon its upperface which is disposed parallel to the path of travel of the handle 21of the shifting rod 20 so that when said rod is shifted to apply thepower for operating the machine, an opening movement of the cover member23 cannotbe effected.

In the operation of the invention, when the cover members are closed andthe shifting rod drawn out-ward to apply the power to the machine, theopening of said members is prevented because of their interlockedconnection and the interposition of the shifting rod in the path oftravel of one of the cover members, as shown by dotted lines in Fig. 3.When it is desired to open the cover members, this shifting rod must bemoved inward to transfer the driving belt to the loose pulley whichdisposes the handle of the shifting rod to the position shown by fulllines in Fig. 3 which permit the swinging outward of the left member ofthe cover and the subsequent opening ofthe right member which is notengaged by this shift ing rod.

It will be seen that the invention presents a simple efficient andeconomical construction by which the cover members are positivelyretained in closed position when power is applied to the machine andwhen the power shifting means is operated to cut off the power, thecover members thereof may be readily opened.

Having described my invention and set forth its merits, what I claim anddesire to secure by Letters Patent is V 1. In a safety cover, a movablecover member, and a power controlling device adapted for movement intothe path of travel of said cover member when in driving position toprevent upward movement of. said cover.

2. In a safety cover, a movable cover member, a sliding powercontrolling device said cover members to adapted for movement above andin the path of. travel-of said covermember, and a lug carried by saidmember to engage said device.

3. In a safety cover, opposite cover members adapted to engage eachother, and a power controlling device constructed for movement into thepath of. travel of one of prevent upward movement thereof.

4. In asafety cover, opposite cover members having an interlockingconnection, and a reciprocating shifter bar mounted for movement intoand out of the path of travel of one of said cover members.

5. In a safety cover, opposite cover members adapted to engage eachother,a reciprocatingshifter bar mounted for movement into and 'outofthe path 'of travel ofione of said cover members, and a projection fromthe upper face of one cover member disposed parallel to the path oftravel of saidshifting device.

' 6. In a safety hinged cover, opposite cover members having aninterlocking connection, and a reciprocating power controlling deviceadaptedfor movement over one cover member intermediate of its hinge andits pointof connection with the opposite member.

7. In a safety hinged cover, opposite cover members mounted and adaptedto en gage each other a projection carried'byone of said cover members,and a reciprocating power controlling device having a handle movableover one of said cover members and adapt'edto be engaged by saidprojection to prevent the upward movement of saidcover.

8. In a safety hinged cover, opposite other cover at their point ofengagement.

9. In a safety cover, a cover member provided witha bearing sleevehaving a circumferential slot therein, a pin disposed within saidsleeve, and a stud carried by said pin and located within said slot tolimit the travel of said cover member.

within said sleeve, a stud carried by said pin and located within saidslot to limit the travel of said cover member, a sleeve carried by saidpost at an angle thereto, and a fixed bearing adapted to receive saidsleeve.

11. In a safety cover, opposite hinged cover members having aninterlocking connection at their free ends, and a shifter bar providedwith'a belt guide and adapted to travel above and in the path ofmovement of one of said cover members.

12. In a safety cover, opposite hinged cover members having aninterlocking connection at their free ends, a shifter bar provided witha belt guide and adapted to travel above and in the path of movement ofone of said cover members, and means for limiting the swinging movementof said cover members.

13. In a safety cover, opposite hinged cover members having aninterlocking con nection at their free ends, a shifter bar provided witha belt guide and adapted to travel aboveandin the path of movement ofone of said cover members, means for limiting the swinging movement ofsaid cover members, and a projection carried by said last mentionedcover member parallel to the path of travel of saidtshif-ter bar.

- 14. In a safety cover, opposite hinged cover members having aninterlocking connection attheir free ends, a shifter bar provided with abelt guide and adapted to travel above andin the path of movement of oneof said cover members, means for limiting the swinging movement of saidcover members, and means for permitting a pivotalmovement of said covermembers in a horizontal plane when opened.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM BARTI-IOLOMEW. Witnesses:

O. I. BELKNAP, WM. KROGMAN.

Copies of this patent may be obtained for five cents eac11 ,byaddressing the Commissioner of Patents,

"Washington, D. G.

